The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 17, 2001

Filed:

Aug. 28, 1998
Applicant:
Inventors:

Michael R. Diehl, Loveland, CO (US);

Maynard Hammond, Lawrenceville, GA (US);

Assignee:

Hewlett-Packard Company, Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/202 ; G06F 1/200 ; G06F 1/206 ; G06F 1/300 ; G06F 9/00 ;
U.S. Cl.
CPC ...
G06F 1/202 ; G06F 1/200 ; G06F 1/206 ; G06F 1/300 ; G06F 9/00 ;
Abstract

A method and apparatus for transferring data in a computer system between a first memory region and second memory region in a single Direct Memory Access (DMA) operation. The first memory region, the second memory region, or both the first and second memory regions can include sub-regions of sequentially-addressable memory locations that are separated, within their respective regions, by a stride. The method and apparatus are particularly well adapted for use in computer graphics systems that include one or more regions of memory, such as frame buffers, that are organized in a rectangular manner as a plurality of contiguous but not sequentially-addressable memory locations within the memory of the graphics system.


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